ZH
About us
Hangzhou Lanran Tech stands as a global leader in the manufacturing of ion exchange membranes, with an impressive annual output of 850,000m2.
We specialize in delivering tailored membrane solutions and advanced equipment to meet the specific needs of our clients, combining flexibility and efficiency with exceptional service.
wholly-owned companies
6
plants
4
sales offices
3
employees
362
R&D
5 R&D centers
176 highly skilled technical professionals
41 invention patents
60 utility model patents
Lanran’s dedicated R&D team works closely with customers to develop solutions that precisely align with their application requirements. From laboratory-scale trials to pilot projects and full-scale industrial production, we offer comprehensive expertise across all stages of equipment development, including integrated modular systems.
Industry solutions
Suatainability
Sustainability drives our innovation. We develop solutions that help industries thrive while reducing their environmental footprint. From advancing the circular economy to combating climate change, our technologies focus on preserving natural resources, reducing pollution, and promoting responsible water management. Our vision is a future where industrial growth aligns with environmental stewardship, fostering sustainable progress for generations to come.
Team Building
“Industrial cleanliness, Resource Hanmony”
At Lanran, we believe strong teams create innovative solutions. Our team-building activities foster collaboration, creativity, and trust, ensuring a vibrant workplace culture that drives excellence. We cultivate the synergy to redefine separation and refine solutions, delivering cutting-edge technologies to our valued clients.
News
Lanran Tech Wins First Prize at the Membrane Industry Association of China Science & Technology Awards
Lanran Technology Co., Ltd. has won the First Prize of the 2025 Science & Technology Award from the Membrane Industry Association of China for its project “Bipolar Membrane Electrodialysis Technology for Acid-Alkali Resource Recovery from Lithium Battery Solid Waste.” This achievement recognizes Lanran’s innovation in bipolar membrane electrodialysis (BMED) and its contribution to green manufacturing and sustainable resource recovery in the lithium battery industry. Innovative Solution for Lithium Battery Waste As the lithium battery and new energy sectors expand, solid waste and high-salinity wastewater treatment have become major challenges. Lanran’s BMED technology enables direct conversion of lithium-containing waste brine into reusable acids and bases, achieving zero liquid discharge (ZLD) and resource recycling. Compared to traditional thermal methods: Capital cost reduced to 30% Operating cost reduced to 10% Resource savings over ¥50 million for clients Technical Highlights High conversion efficiency: Acid and alkali concentration >2N, water dissociation efficiency ≥98.5% Stable and durable: Membrane lifespan >2 years, lower energy use and carbon emissions Industrial scale: 3 invention patents, 5 utility patents, 250,000 t/a total application capacity Widespread Industrial Applications Lanran’s BMED technology is now used in Xinjiang, Qinghai, Tibet, Sichuan, and Anhui, supporting industries such as lithium battery recycling, viscose fiber, pharmaceuticals, chemicals, metallurgy, and paper manufacturing. This innovation provides an economical, low-carbon, and circular solution, promoting sustainable industrial transformation and contributing to China’s carbon neutrality goals.
Food-Grade Acid and Alkali Production with Bipolar Membrane Electrodialysis (BMED)
Since 2024, Lanran Tech’s self-developed Bipolar Membrane Electrodialysis (BMED) system has been successfully operating in a leading food-grade production facility. This innovation cleanly and efficiently converts food-grade sodium chloride (NaCl) into high-purity hydrochloric acid (HCl) and sodium hydroxide (NaOH). Therefore, this milestone not only marks the technology’s successful industrial application in the food sector but also underscores its vital role in advancing green chemistry and sustainable manufacturing. Our BMED system processes 7,000 tons of food-grade NaCl annually, generating 4,786 tons of NaOH (100%) and 14,550 tons of 30% HCl. Moreover, it delivers long-term stability, low power consumption, and continuous operation, thereby meeting the stringent demands of the food and pharmaceutical industries. Unlike traditional chlor-alkali electrolysis, our on-site BMED process significantly cuts power usage, transport costs, and carbon emissions, while guaranteeing a secure and consistent supply of food-grade acid and alkali. The entire process adheres to strict food-grade safety standards through a fully automated sequence: We ensure full compliance with food-grade safety and hygiene standards by design: Our system delivers compelling advantages: In summary, Lanran’s BMED technology provides a clean, safe, and cost-effective solution for food-grade acid and alkali production. Beyond the food sector, it is driving sustainable innovation across pharmaceuticals, biotechnology, and fine chemicals. As a result, we are helping global partners achieve robust economic growth alongside meaningful carbon reduction.
Lanran CCUS Application Solutions – 50,000 t/a CO₂ Capture at Cement Plant
Case: 50,000 t/a CO₂ Capture at Cement Plant at Anhui Background: In 2021, a 50,000 t/a CO₂ capture and purification demonstration project at the cement plant in Anhui. This was one of the world’s first full-scale CCUS applications in the cement industry, setting a benchmark for low-carbon transformation in cement manufacturing. The project initially used an alternative supplier’s electrodialysis stacks for amine purification. Over time, these units struggled to maintain low Heat Stable Salts (HSS) levels, which affected solvent performance and increased operating costs. Lanran Solution: In July 2024, the cement plant replaced the original ED stacks with Lanran’s ED416-130 electrodialysis units. In an electric field, unwanted ions (e.g., HSS anions such as formate, sulfate, oxalate) migrate across ion exchange membranes into a concentrate stream, while active amines (e.g., MDEA – Methyldiethanolamine) are retained for reuse. This continuous process restores solvent absorption and regeneration capacity, without requiring chemical additives. Technology Advantages: ✔ Successful retrofit upgrade proving Lanran’s ED reliability. ✔ Low operating cost vs. resin replacement or thermal reclaiming. ✔ Extended solvent life and improved process stability. Results & Impact: Amine solvent stabilized with HSS maintained at <1%. CO₂ capture efficiency fully restored. The system continues to run stably with reduced corrosion and foaming issues.